st: gllamm

[Andr� Paul <hcpats@hotmail.fr>]

Dear all,

In the paper: Lanjouw & Schankerman (2004) "Patent quality and research 
productivity: measuring innovation with multiple indicators" Economic 
Journal, 114, the authors create a "patent quality index" by estimating a 
factor model with multiple indicator with one latent common factor. In other 
words, they use 4 patent related indicators to derive the "patent quality 
index".

My question is the following:
is it possible to do such a thing with gllamm? and if yes, are there any 
"tutorials" or references explaining the methodology?

Thanks in advance,
Andr�

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